Hey fridge owners, let's talk about something most people forget - refrigerator air filters! This GLACIER FRESH 4-pack is compatible with Frigidaire PureAir Ultra II systems and works wonders at eliminating those nasty food odors. We're talking onion, garlic, fish, spoiled milk - you know the smells that seem to linger forever? These filters actually remove them from the air inside your fridge. The dimensions are 3.8x1.8x0.4 inches and they fit perfectly without any leaks. Installation is tool-free and takes about 30 seconds - just pop the old one out and slide the new one in. You're supposed to replace these every 3-6 months for optimal performance, and with 4 filters in this pack, you're set for over a year. They're compatible with tons of Frigidaire and Electrolux models (check your specific model to be sure). Seriously, if you're tired of opening your fridge to unpleasant smells or want to keep your food tasting fresher, these filters make a huge difference. Your nose (and your food) will thank you!